Richard Lore
Biographic Data
| ID | 5381379 |
|---|---|
| NAME | Richard Lore |
| GIVEN NAMES | Richard |
| FAMILY NAME | Lore |
| SIGNATURE | LORE R |
| AFFILIATIONS | Rutgers, the State University of New Jersey |
| VERIFIED | No |
| TOTAL WORKS | 13 |
| TOTAL CITATIONS | 6 |
| AUTHOR COUNT | 13 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1968 |
| LATEST PUBLICATION YEAR | 1993 |
| H-INDEX | 1 |
Control of human aggression
Jolly fat rats? The effects of diet-induced obesity on territorial fighting
In experiment 1, pairs of young male rats became obese on a palatable and complex diet high in fat, sucrose, and protein. The obese pairs exhibited greater within-group weight variability and, when tested as adults, were significantly more aggressive toward an unfamiliar conspecific than chow-fed controls. The increased aggressivity of obese males was not due to the relatively larger resident-intruder weight disparities in these pairs, since weig…
Lean and mean rats
In experiment 1, individually housed rats subjected to short-term food restriction displayed more territorial aggression toward conspecific intruders than controls maintained on a free-feeding diet. In experiment 2, small groups of three adult male rats had access to either a standard laboratory diet or the standard diet plus sucrose. Groups with the sucrose supplement were significantly less aggressive toward intruders than controls. Sucrose ava…
Colony aggression in laboratory rats
The behavioral response of established colonies of domesticated rats to the presence of an unfamiliar intruder of the same species represents one of the most effective procedures yet developed to study aggression in the laboratory. Here, the social, experiential, and environmental variables that influence attack severity are reviewed and several important methodological issues are discussed. Brief exposures of intruders to intact colonies may pro…
Play fighting and the development of agonistic behavior in male and female rats
Two longitudinal studies were conducted to quantify the social behaviors exhibited by both male and female Long-Evans rats from the immediate postweaning period until young adulthood. In Experiment 1, male sibling pairs engaged in a high level of play fighting during the early juvenile period but such activity declined to a level significantly lower than that of female and mixed-sex pairs after 54 days of age. In Experiment 2, social exchanges du…
Effects of an adult's presence on the social behavior of preschool children
The social behavior of same-sex pairs of nursery school children was observed during two ten-minute play sessions. One half of the pairs played alone during both sessions, and the remaining pairs played in the presence of a passive adult supervisor. Child pairs who played alone were significantly less aggressive and exhibited a moderate but nonsignificant increase in the expression of positive or prosocial behaviors. Unsupervised pairs also tende…
Comparative studies of wild and domestic rats
Virtually all previous behavioral comparisons of wild and domestic rats indicate that many components of the wild variety's agonistic repertoire are either absent or much attenuated in domestic strains. A study by Barnett et al [1979] published in this journal illustrates some of the procedural difficulties associated with comparative studies of this kind. Research in this area suffers from a failure to acknowledge the fact that developmental fac…
Aggression in domesticated rats reared in a burrow-digging environment
Male and female rats were raised individually in either large boxes filled with soil (burrow environment) or laboratory cages of comparable size (cage environment). In a test of intruder-elicited aggression, intruders exposed to burrow-environment residents lost more body weight, were more likely to have empty stomachs, and received more wounds during a 24 hour aggression test. The results indicate that the physical environment during the period …
Ultrasounds produced by rats accompany decreases in intraspecific fighting
Male intruder rats were placed individually into the cage of an established resident on 2 occasions separated by a 7–8 day interval. Residents readily attacked intruders and both animals lost weight during the first encounter. In contrast, no serious fighting occurred on the second encounter, and both intruders and residents maintained their body weight during the 24-hr test. Observation of the intruder's behavior during the first 30 min of each …
Dominance-subordinance in cohabiting pairs of adult rats
Following an initial intruder aggression test, 10 pairs of adult male rats matched on aggressiveness were formed. The first 20 min of paired cohabitation were used to determine dominance and subordinance between pau members. Residents judged to be dominant from this observation session gained significantly more weight during cohabitation and exhibited significantly more aggression on the second aggression test than their subordinate counterparts.…
Early feeding experience and food hoarding in rats
Pain avoidance behavior of rats reared in restricted and enriched environments
The activity-drive hypothesis
The activity-drive hypothesis
Pain avoidance behavior of rats reared in restricted and enriched environments
Early feeding experience and food hoarding in rats
Dominance-subordinance in cohabiting pairs of adult rats
Following an initial intruder aggression test, 10 pairs of adult male rats matched on aggressiveness were formed. The first 20 min of paired cohabitation were used to determine dominance and subordinance between pau members. Residents judged to be dominant from this observation session gained significantly more weight during cohabitation and exhibited significantly more aggression on the second aggression test than their subordinate counterparts.…
Ultrasounds produced by rats accompany decreases in intraspecific fighting
Male intruder rats were placed individually into the cage of an established resident on 2 occasions separated by a 7–8 day interval. Residents readily attacked intruders and both animals lost weight during the first encounter. In contrast, no serious fighting occurred on the second encounter, and both intruders and residents maintained their body weight during the 24-hr test. Observation of the intruder's behavior during the first 30 min of each …
Comparative studies of wild and domestic rats
Virtually all previous behavioral comparisons of wild and domestic rats indicate that many components of the wild variety's agonistic repertoire are either absent or much attenuated in domestic strains. A study by Barnett et al [1979] published in this journal illustrates some of the procedural difficulties associated with comparative studies of this kind. Research in this area suffers from a failure to acknowledge the fact that developmental fac…
Aggression in domesticated rats reared in a burrow-digging environment
Male and female rats were raised individually in either large boxes filled with soil (burrow environment) or laboratory cages of comparable size (cage environment). In a test of intruder-elicited aggression, intruders exposed to burrow-environment residents lost more body weight, were more likely to have empty stomachs, and received more wounds during a 24 hour aggression test. The results indicate that the physical environment during the period …
Play fighting and the development of agonistic behavior in male and female rats
Two longitudinal studies were conducted to quantify the social behaviors exhibited by both male and female Long-Evans rats from the immediate postweaning period until young adulthood. In Experiment 1, male sibling pairs engaged in a high level of play fighting during the early juvenile period but such activity declined to a level significantly lower than that of female and mixed-sex pairs after 54 days of age. In Experiment 2, social exchanges du…
Effects of an adult's presence on the social behavior of preschool children
The social behavior of same-sex pairs of nursery school children was observed during two ten-minute play sessions. One half of the pairs played alone during both sessions, and the remaining pairs played in the presence of a passive adult supervisor. Child pairs who played alone were significantly less aggressive and exhibited a moderate but nonsignificant increase in the expression of positive or prosocial behaviors. Unsupervised pairs also tende…
Colony aggression in laboratory rats
The behavioral response of established colonies of domesticated rats to the presence of an unfamiliar intruder of the same species represents one of the most effective procedures yet developed to study aggression in the laboratory. Here, the social, experiential, and environmental variables that influence attack severity are reviewed and several important methodological issues are discussed. Brief exposures of intruders to intact colonies may pro…
Lean and mean rats
In experiment 1, individually housed rats subjected to short-term food restriction displayed more territorial aggression toward conspecific intruders than controls maintained on a free-feeding diet. In experiment 2, small groups of three adult male rats had access to either a standard laboratory diet or the standard diet plus sucrose. Groups with the sucrose supplement were significantly less aggressive toward intruders than controls. Sucrose ava…
Jolly fat rats? The effects of diet-induced obesity on territorial fighting
In experiment 1, pairs of young male rats became obese on a palatable and complex diet high in fat, sucrose, and protein. The obese pairs exhibited greater within-group weight variability and, when tested as adults, were significantly more aggressive toward an unfamiliar conspecific than chow-fed controls. The increased aggressivity of obese males was not due to the relatively larger resident-intruder weight disparities in these pairs, since weig…
Control of human aggression
Psychology (12 works) · Developmental psychology (11 works) · Aggression (9 works) · Biology (8 works) · Medicine (7 works) · Animal Behavior and Welfare Studies (6 works) · Neuroendocrine regulation and behavior (6 works) · Animal Ecology and Behavior Studies (5 works) · Animal Behavior and Reproduction (4 works) · Body weight (4 works)